Cross Roller Bearing

RE Series Crossed Roller Bearing

RE series crossed roller bearings(inner ring division type with outer rotating) is also the primary type of crossed roller bearings. The size is the same as that of RB series crossed roller bearings. The inner rings have two parts, and the outer ring is one integer. The type is well applied to situations requiring high rotation accuracy on the outer ring.

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RE Series Crossed Roller Bearing

RE series crossed roller bearings(inner ring division type with outer rotating) is also the primary type of crossed roller bearings. The size is the same as that of RB series crossed roller bearings. The inner rings have two parts, and the outer ring is one integer. The type is well applied to situations requiring high rotation accuracy on the outer ring.

RE Series Crossed Roller Ring Features:

1. Sustain radial, axial, and moment loads simultaneously.

2. High rigidity, high rotation accuracy, and high loading capacity.

3. Stable rotation.

4. Thin-section structure.

RE Series Crossed Roller Bearing Parameters:

Shaft diameter (mm) Model number Main dimensions (mm)  Shoulder height  Basic load rating(radial) weight
Inner ring d (mm) Outer ring D  DP  width  Greasing hole r(min) ds (mm) Dh (mm) C kN Co kN Kg
(mm)
40 RE4010 40 65 53.5 10 1.5 1 47.5 58 8.33 10.6 0.16
45 RE4510 45 70 58.5 10 1.5 1 51 61.5 8.62 11.3 0.17
50 RE5013 50 80 66 13 1.5 1 57.5 72 16.7 20.9 0.27
60 RE6013 60 90 76 13 1.5 1 68 82 18 24.3 0.3
70 RE7013 70 100 86 13 1.5 1 78 92 19.4 27.7 0.35
80 RE8016 80 120 101.4 16 1.5 1 91 111 30.1 42.1 0.7
90 RE9016 90 130 112 16 1.5 1.5 98 118 31.4 45.3 0.75
100 RE10016 100 140 121.1 16 1.5 1.5 109 129 31.7 48.6 0.83
RE10020 150 127 20 1.5 1.5 113 133 33.1 50.9 1.45
110 RE11012 110 135 123.3 12 1.5 1 117 127 12.5 24.1 0.4
RE11015 145 129 15 1.5 1 122 136 23.7 41.5 0.75
RE11020 160 137 20 1.5 1.5 120 140 34 54 1.56
120 RE12016 120 150 136 16 1.5 1 127 141 24.2 43.2 0.72
RE12025 180 152 25 2 2 133 164 66.9 100 2.62
130 RE13015 130 160 146 15 1.5 1 137 152 25 46.7 0.72
RE13025 190 162 25 2 2 143 174 69.5 107 2.82
140 RE14016 140 175 160 16 1.5 1.5 147 162 25.9 50.1 1
RE14025 200 172 25 2 2 154 185 74.8 121 2.96
150 RE15013 150 180 166 13 1.5 1 158 172 27 53.5 0.68
RE15025 210 182 25 2 2 164 194 76.8 128 3.16
RE15030 230 192 30 3 2 173 210 100 156 5.3
160 RE16025 160 220 192 25 2 2 173 204 81.7 135 3.14
170 RE17020 170 220 196.1 20 1.5 2 184 198 29 62.1 2.21
180 RE18025 180 240 210 25 2 2 195 225 84 143 3.44
190 RE19025 190 240 219 25 1.5 1.5 202 222 41.7 82.9 2.99
200 RE20025 200 260 230 25 2 2.5 215 245 84.2 157 4
RE20030 280 240 30 3 2.5 221 258 114 200 6.7
RE20035 295 247.7 35 3 2.5 225 270 151 252 9.6
220 RE22025 220 280 250.1 25 2 2.5 235 265 92.3 171 4.1
240 RE24025 240 300 272.5 25 2 3 256 281 68.3 145 4.5
250 RE 25025 250 310 280.9 25 2 3 268 293 69.3 150 5
RE 25030 330 287.5 30 3 3 269 306 126 244 8.1
RE 25040 355 300.7 40 3.5 3 275 326 195 348 14.8
300 RE 30025 300 360 332 25 2 3 319 344 75.7 178 5.9
RE 30035 395 345 35 3 3 322 368 183 367 13.4
RE 30040 405 351.6 40 3.5 3 326 377 212 409 17.2
350 RE 35020 350 400 376.6 20 1.5 3 363 383 54.1 143 3.9
400 RE 40035 400 480 440.3 35 3 3.5 422 459 156 370 14.5
RE 40040 510 453.4 40 3.5 3.5 428 479 241 531 23.5
450 RE 45025 450 500 476.6 25 1.5 1.5 464 484 61.7 182 6.6
500 RE 50025 500 550 526.6 25 1.5 1.5 514 534 65.5 201 7.3
RE 50040 600 548.8 40 3 3.5 526 572 239 607 26
RE 50050 625 561.6 50 3.5 3.5 536 587 267 653 41.7
600 RE 60040 600 700 650 40 3 4 627 673 264 721 29

RE Series Crossed Roller Bearing Applications:

RE series cross roller rings are especially suitable for applications where space is limited, while high rigidity and high rotation accuracy are required. Such as joints and swiveling units of industrial robots, machining center tables, rotary units of manipulators, precision rotary tables, medical equipment, measuring instruments, and IC manufacturing machines.

Types of Roller Bearings:

There are five main types of roller bearings:

Cylindrical roller bearing has high radial load capacity and moderate thrust load. They contain cylindrical rollers but are lightened at the top or end to reduce stress concentration. Cylindrical roller bearings are similar in design to needle roller bearings, but the diameter and roller length dimensions are more similar in order of magnitude.

Spherical roller bearings are self-aligning, double-row, combined radial, and thrust bearings. They use a spherical or crown roller as the rolling element.

How to choose Roller bearings Pressed roller bearings to consist of an inner ring (cone), an outer ring (cup shape), a cage, and rollers that are contoured to distribute the load evenly over the rollers. During operation, tapered roller bearings create line contact between the raceway and the rolling element, distributing the load over a larger area.

A needle roller bearing is a cylindrical roller bearing in which the length of the roller is much larger than the diameter. Needle roller bearings are designed for radial load applications requiring low profile.

Thrust bearings are designed for pure thrust loads and can handle little or no radial loads. Roller thrust bearings use rollers similar to other types of roller bearings.

Selection of crossed roller bearing

Notes in use of crossed roller bearings:

The two-divided imner or outer ring fixed with special rivets or bolts and nuts inseparable. and should be diectly mounted into the bearing base for use. Meanwhile. if the spacer holder assembling sequenceis improper ,it will have a great impact on the rotation performance of the bearing.so,the bearing can not be disassembled freely.There is some deviation athe joint of inner or outer ring, before it is mounted into the bearing seat.the bolts to fix the imner or outer ring should be loosened to correct it with a plastic hammer. (the fixed rivets may be deformed with the bearing base deformation)Do not apply any extermal force onto the fixed rivets orbolts during the mounting or removal.

Please note the size tolerances of the mounting parts, and press securely the inner or outer ring with the flange from the side.

Lubrication for crossed roller bearing:

The crossed roller bearing has been filled with high quality 2# lithium grease, so it can be directly mounted for use. However. compared with common roller bearings it has a smaller intemal space. so the grease must be replenished periodically.

The grease should be replenished from the grease hole connected to the grease groove on the outer and inner rings. The grease replenishment interval is generally 6-12 months. The same grease must be replenished in all areas

Meantime, when the grease is filled fully,the initial rotation torque will be increased in a short ime due to the grease resistance;when the excess grease is spilled from the seal portions,it will soon be retumed to the normal torque value.